济南机箱机柜的设计教程

Design Tutorial for Jinan Chassis and Cabinet

　　1.机箱面板设计。机箱面板通常使用型材或冷轧钢板制作，有时使用铝合金板，厚度一般为10mm。面板上可能有必要添加装饰性元素，如丝印或凹凸槽，但这些不应影响面板的功能性和牢固性。面板的尺寸和安装孔的设计需符合特定标准，以确保与机柜立柱的兼容性。

　　1. Chassis panel design. The chassis panel is usually made of profile steel or cold-rolled steel plate, sometimes aluminum alloy plate, with a thickness of generally 10mm. It may be necessary to add decorative elements such as screen printing or grooves on the panel, but these should not affect the functionality and firmness of the panel. The size of the panel and the design of installation holes need to comply with specific standards to ensure compatibility with the cabinet columns.

　　2.机柜设计。在设计机柜时，需要考虑机柜的内部结构，如方孔条的间距和位置，以及机柜的高度和深度。标准19英寸机柜中一对方孔条的孔距是固定的466mm。机柜的高度由U数和余量决定，而深度则取决于机箱的尺寸和滑轨的使用。

　　2. Cabinet design. When designing a cabinet, it is necessary to consider the internal structure of the cabinet, such as the spacing and position of square hole bars, as well as the height and depth of the cabinet. The hole spacing of a square hole bar in a standard 19 inch cabinet is fixed at 466mm. The height of the cabinet is determined by the number of U and safety margin, while the depth depends on the size of the chassis and the use of the rails.

　　3.钣金机箱外壳设计。钣金机箱外壳需要合理展开以节省材料和便于加工，同时注意间隙和包边方式。设计时还需考虑公差、毛刺方向、折弯角内半径等因素。

　　3. Sheet metal chassis shell design. The shell of the sheet metal chassis needs to be unfolded reasonably to save materials and facilitate processing, while paying attention to gaps and edge wrapping methods. When designing, factors such as tolerance, burr direction, and internal radius of bending angle also need to be considered.

　　热设计原则。进行热分析和预计，优化传热路径，利用自然通风或风机散热，并对热敏感部件进行隔离。

　　Thermal design principles. Conduct thermal analysis and prediction, optimize heat transfer paths, utilize natural ventilation or fan cooling, and isolate heat sensitive components.

　　静电防护设计准则。关键部件如键盘和控制面板应能直接通过机架接地，以耗散人体静电。

　　Design criteria for electrostatic protection. Key components such as the keyboard and control panel should be directly grounded through the rack to dissipate static electricity from the human body.

　　EMC（电磁兼容性）设计原则。采用金属外壳屏蔽，确保所有散热孔符合要求，注意电缆布线和接地。

　　EMC (Electromagnetic Compatibility) design principles. Using a metal shell shielding to ensure that all heat dissipation holes meet the requirements, pay attention to cable routing and grounding.

　　振动冲击防护设计准则。进行振动和冲击分析，确保产品固有频率与外部振动源激励频率保持一定距离，防止共振。

　　Design criteria for vibration and impact protection. Conduct vibration and impact analysis to ensure that the natural frequency of the product is kept at a certain distance from the excitation frequency of external vibration sources to prevent resonance.

　　此外，设计过程中可能还需要使用的设计软件来创建2D机柜模板、添加导轨、线槽、元件等，并更新其长度和位置。

　　In addition, professional design software may also be required during the design process to create 2D cabinet templates, add rails, cable trays, components, etc. and update their length and position.

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